Accessing this variable from method instance

Question

How do you access the this object from another object instance?

var containerObj = {
    Person: function(name){
        this.name = name;
    }
}
containerO         


        

Answer 1

Don't put the constructor on the prototype of another class. Use a factory pattern:

function Person(name) {
    this.name = name;
}
Person.prototype.makeBag = function(color) {
    return new Bag(color, this);
};

function Bag(color, owner) {
    this.color = color;
    this.owner = owner;
}
Bag.prototype.getOwnerName = function() {
    return this.owner.name;
};

var me = new Person("Asif");
var myBag = me.makeBag("black");
myBag.getOwnerName() // "Asif"

Related patterns to deal with this problem: Prototype for private sub-methods, Javascript - Is it a bad idea to use function constructors within closures?